LASIK flaps heal...and very quickly. I'm not sure where you got the information that the flaps never heal, but that information is false.
My husband had LASIK nearly two months ago and he has been told that the edges of his corneal flaps had healed (no way for any dirt to get in) and that the corneal epithelium at the site of the flap had already grown together to create the seal in 24 hours.
Yes, dry eyes are very common after LASIK, but that gets better as the cornea heals. The halos are also a very common occurrence after the surgery, but over time improve a lot.
I, myself, had PRK a month ago. My dry eyes are doing a lot better. I do not feel like I need artificial tears as often as I use them, but I also have a job where I am on the computer 100% of the time, and now a part time job that is also 100%...keeping me on the computer for 14-16 hours a day, not blinking as much as I should...hence, keeping the artificial tears going.
I do see halos or "firework thingys". They are becoming less and less bothersome...and I think they're actually quite pretty lol. The only time I see them is at night when the pupils are dilated beyond my lasered cornea. They are getting smaller and less bothersome as the weeks go by...and I'm only 4 weeks out from my surgery.
If you are interested in getting LASIK, research two or three surgeons in your area, and get a consultation from your top choice.
The procedure is quite safe and the lasers of today are MUCH better than they were when refractive surgery first came out in the mid 90s.
There really isn't too much controversy. As with ANY surgery, there is some potential for complications; however, the serious complication rate is 5%, and many of these complications are due to noncompliance with the postop instructions or surgeon incompetence. The surgeon is the KEY! Do not put your eyes in the hands of the lowest bidder...these are the only eyes you will have. It is well worth spending the money instead of going to the advertised "$299 per eye" places. Choose a surgeon you are comfortable with. Take a list of questions and concerns with you for them to address.
I do not know where you had heard that the flap never heals. It does...and very quickly...I had my epithelium removed and it was healed over in four days! I was scared too, but with my surgeon (and he was AWESOME!!) I felt very comfortable and in very, very capable hands.
I hope I've been of some help. Use the links below. There is a ton of information in there...and more that you can get to from the Laser surgery home section on that site. There's even a starting list of some important questions to ask. Both my husband and I had refractive surgery using a highly recommended, very well educated, corneal focused surgeon and we have both had very good outcomes.